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Published byRobert Harper Modified over 6 years ago

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Multiplying Decimals

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To Multiply: Place the number with more digits on top. Line up the numbers, ignoring the decimal point. Multiply Count the number of digits behind the decimal in each number. Use the total number of digits behind the decimal factors to place the decimal in your product.

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Example: 5.63 x 3.7 5. 63 3.73.7 x 1 2 4 4 39 098 1 16+ 13 1 8 1 0 1 2 two one three.

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Example: 0.53 x 2.618 2.618 has more digits (4) than 0.53 (3), so it goes on top. 2.618 0.53x 4 2 58 1 7 00 4 90 3 13 000000+ 457 1 831 Decimal Places three two five.

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Try This: 6.5 x 15.3 15.3 6.56.5x 5 1 6 2 7 08 1 1 3 9+ 54 1 99 one two.

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Multiplication Properties Commutative Property of Multiplication: Factors can be multiplied in any order. Example: 12 x 5 = 5 x 12 Associative Property of Multiplication: Factors can be grouped in any way. Example: (2 x 3) x 5 = 2 x (3 x 5) Identity Property of Multiplication: The product of any number and one is that number. Example: 18 x 1 = 18

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